From 1efe72041e00868c3c71eaf569343ee132a4fbb9 Mon Sep 17 00:00:00 2001
From: Mark Borgerding <mark@borgerding.net>
Date: Wed, 7 Aug 2019 21:26:54 -0400
Subject: [PATCH] above commit was cherry-picked from MoonchildProductions fork
 of kissfft (closes issue #26)